Question

Which of the following is the type carrier protein that transports one type of molecule (such as

glucose) through the plasma membrane?
O uniporter
O ionporter
O antiporter
symporter

Answer 1

A single-molecule carrier protein would be uniport. The example of glucose is a bit misleading, however; it’s true that most mammalian glucose transport proteins are uniporters, but glucose transport proteins in bacteria can be symporters. But read in context, uniporter would seem to be the answer here.